Stuart l



Jan, 8 1924.

S. L. EVERHART CUSHION TIRE Original Filed y 15. 1920 WATTORNEY.

Patented Jan. 8, 1924.

UNITED STATES UAIB'I L. EVEREART. OF DOWAGIAC, MICHIGAN.

CUSHION rum Application filed. May 15, 1920, Serial To all 70/10/11 rmay concern:

Be it known that I. STUART L. Evsmmnr, a citizen of the United States.residing at Dowagiac, in the county of Cass and State of Michigan, haveinvented certain new and useful Improvements in a Cushion Tire. of whichthe following is a. specification.

This invention relates to tires and more particularly to the class ofcushion tires for vehicle wheels.

The primary object of the invention is to provide a tire which willpossess the desired resiliency for absorbing shocks and jars incident tothe irregularity in the surface of the roadway without the use of thepneumatic tubes within the tire.

Another object of the invention is to provide a tire which will have allof the outward appearances of being a pneumatic tire but which will havethe invention arranged in the outer casing of the tire so that thedesired resiliency will be produced and the necessity of inflating thetire will be obviated.

The invention further aims to provide an inner resilient structure ofrubber constructcd of coacting sections for the purpose of producinresiliency but arranged so that lateral distortion of the yieldablesections will not be permitted.

Other objects of the invention will appear upon consideration of thefollowing detailed description and accompanying drawin s. wh'creinr-Tigure 1 is a trmisvcrse section of the tire culistltlctctl inaccordance with my invention, and

Figure 2 is a longitudinal section showing part of the inner structurein elevation.

In the drawings illustrating the preferred embodiment of the inventionthe wheel rim 1 may be of any preferred construction and is providedwith the usual demountable rim 2 such as is commonly employed on antomobile wheels. The outer casing or shoe 3. is held in position by the rimstructure in the usual manner and it. will be understood that theinvention will be adapted for an size, tires and may be used on lightand lieavy vehicles by merely changing the relative proportions of theparts which constitute the structure.

The resilient member which takes the place of the ordinary inner tube ismounted within the tire casing 3 and consists of the "outer annularsection 0 and the inner rim No. 381,539. Renewed June 1a, 1923.

engaging section 6. The inner section this arranged between the sideportions of the tire casing having, its edges beveled so as to snuglyfit 'the space between the side portions to maintain the section inposition centrally with respect to the tire shoe. The outer section 5engages the inner surface of the shoe at a point directly beneath thetread thereof. These sections may be of any desired thickness and widthaccording to the type of vehicle upon which they are to be used and itwill be obvious that the parts may be constructed of any suitablematerial.

The two sections 5 and 6 are radially spaced apart so that an annularspace intervenes between the two sections. integrally formed with thetwo annular sections 5 and 6 are the intermediate supporting members 7through the medium of which the desired resiliency is obtained. Thesemembers are preferably ctmstructed of rubber having the desiredresiliency and are integrally moulded with the annular sections 5 and (3as shown in Fig. 2. shaped and their upexes extend circnmferentiallythrough the intervening s )ace between the annular sections so that themembers 7 are always disposed at an angle as shown. The supportingmembers 7 are all of the same thickness according to the size of thetire and are of equal width and s nce these sections are disposededgewise it will be obvious that only a radial resiliency will occur andlateral distortion will be prevent 'l l. Therefore the swaying of thevehicle and irregularities in the roadway will not cause lateral bendingor bulging of the tire shoe.

Due to their V-shaped formation. however, and the flexible material fromwhich they are constructed, the members 7 are free to flex radiallywhereby the two sections 5 and 6 me move toward and away from each otherWit do the tire shoe when a weight is supported thereby as when the tireis |nounted upon a vehicle wheel. Particular stress island on thecirctnnferentially projecting V-shaped 'SUPPOltlng members 7 disposedwithin the space between the two annular sections 5 and 6 so that only aradial flexing of the members is permitted but no lateral bulging willoccur.

What I claim is A tire filler comprising radially s aced resilientannular sections. substantial y V- shaped supporting members verticallyar- The members 7 are V- Q 1 ,4ao,201

ranged between the said sections in spaced In testimonv whereof, I haveaffixed my relation all: inktlegrally kflormed therewith. signatureinthe presence of two witnesses. sai mem rs avi t eir :ipexes inter- Tmediate the sections end projecting in cir- STUART ERHAR'I icumierential alignment with each other Witnesses:

whereby radial flexing of said members will ALBERT B. Fmsme bepermitted. JOSEPH H. Mums.

